—Mr. Green, can you spare me a few minutes? I still have some questions about your assignment.
—________.
| A．It's a pleasure | B．Not at all |
| C．Help yourself | D．Sure, go ahead |
The quality of the teachers will influence the students,and ________, the quality of the students will influence the teachers.
| A．as a result | B．in vain | C．in turn | D．in time |
That was the last time I saw my father before he _____.
| A．pass on | B．pass away | C．pass off | D．pass down |
The experiment __to be .
| A．turned out; greatly success | B．turned out; a great success |
| C．turned out; greatly successful | D．turned up; great success |
Many _______ of years later, the first extremely small plants began to appear on the surface of the water.
| A．millions | B．million | C．million of | D．millions of |
As a child, Franc ＿＿＿＿＿.
| A．was alive | B．grew patience | C．ran wild | D．came true |